Tweco 100 Ultra-Cut(March 2013) - Manual (Page 65)

Manual No. 0-5132 3-41 INSTALLATION
ULTRA-CUT 100
6. Connect the gas and coolant leads to the Torch Head.
a. Coolant supply and return connections to the Torch Head are of different lengths.
b. Plasma and secondary gas connections to the Torch Head are threaded differently; the plasma gas
connection is left-hand thread, the shield gas connection is right-hand thread.
c. Hold the Torch Head leads connectors stationary; turn the leads fittings with a wrench to secure the
leads to the Torch Head. Do not overtighten.
CAUTION
The gas and coolant leads include compression fittings. Do not use sealant on these connections. Use
two wrenches for each connection: one to hold the non hose fitting in place while using the other to
tighten the hose fitting.
Slowly apply pressure to the gas lines. Check for leaks at all connections before continuing. If there
are no leaks, shut off the gas supplies and continue with installation.
7. Connect the pilot lead to the Torch Head. Press the two ends of the connector firmly together. Fold the
excess wire in a serpentine shape and tuck inside cover. Thread the plastic lead cover/connector onto the
mating Torch Head connector.
8. Press the Torch Head Assembly upward to connect to the Mounting Tube. Pull the leads back as needed
to ensure a proper fit through the Mounting Tube and Torch Leads End Cap. Hold the Torch Head Assembly
stationary; rotate the Mounting Tube to thread it onto the Torch Head.
CAUTION
Ensure that the leads do not twist within the mounting tube. Leads must lie as shown in the installation sketch.
9. The lower end of the Mounting Tube includes four threaded holes.
10. Install the appropriate consumable parts as shown on the following pages. The torch manual includes
diagrams showing the correct parts to install, depending on the metal to be cut and the gases in use.
3.20 Install Consumable Torch Parts
Install the consumable parts as follows to ensure proper operation. These steps will help ensure that parts are
seated correctly.
Art # A-03887
WARNINGS
Do not install consumables into the Cartridge
while the Cartridge is attached to the Torch Head.
Keep foreign materials out of the consumables and Cartridge.
Handle all parts carefully to avoid damage,
which may affect torch performance.